It was pretty simple. I bought some custom-mixed dye from Joanne at ColorPlus. I sent her the ashtray door to match against, although it would have been easier for her with a larger piece. I also bought some leather cleaner and conditioner.

The included instructions were pretty thorough - the dye is basically a flexible paint, so as with any paint job, surface prep is key. Three coats of dye, applied with a brush, let cure for a week and it's done.

I've done another steering wheel this way, and after a couple summers of sweaty hands, it still looks new. I'll probably do my seats one of these winters - it's a nice project you can do indoors, with no smells.